Home / 1,078,508,735.07-1,617,855,317.73-378,940,064.19

Finding the Fourth Proportional to 1,078,508,735.07, 1,617,855,317.73 and 378,940,064.19

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Solution

The fourth proportional to 1,078,508,735.07, 1,617,855,317.73 and 378,940,064.19 is: 568,442,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,508,735.07 : 1,617,855,317.73 = 378,940,064.19 : x
  2. Step 2: Convert to fraction form
    1,078,508,735.07/1,617,855,317.73 = 378,940,064.19/x
  3. Step 3: Cross multiply
    1,078,508,735.07x = 1,617,855,317.73 × 378,940,064.19
  4. Step 4: Simplify right side
    1,078,508,735.07x = 613,070,197,950,739,072
  5. Step 5: Solve for x
    x = 613,070,197,950,739,072/1,078,508,735.07
  6. Step 6: Final answer
    x = 568,442,496.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.